Device and method for calculating coordinate of track and coordinate of detected point

Abstract

The invention discloses a device and a method for calculating the coordinate of a track and the coordinate of a detected point. The method is characterized in that a high-precision CPIV track datum net point is utilized as the measuring basis of a three-dimensional detection system of the track; a benchmark total station and an auxiliary total station directly capture a CPIV datum net prism in order to obtain coordinate values of the CPIV datum net prism on two total stations; by calculating position difference between the benchmark total station and the auxiliary total station, influence of connection error for left and right car frames upon positions of total stations is eliminated; and the coordinate of the detected point of the track and the coordinate of a center line of the track are calculated under the principle of euler angles and the law of rigid body motion. A track detection trolley comprises a right trolley frame, the auxiliary total station, the benchmark total station, a left trolley frame and a dual tilt sensor. The method for the coordinate of the detected point and the track detection trolley have following beneficial effects: a digital model of a detection system is simplified via principles of euler angles and the law of rigid body motion; the coordinate of the detected point of the track and the coordinate of the center line of the track can be rapidly calculated; and detection precision and efficiency are enhanced.

Description

technical field [0001] The invention belongs to the technical field of railway track installation quality detection and daily line maintenance detection, and in particular relates to a device and method for calculating track center line coordinates and detected point coordinates. Background technique [0002] The current three-dimensional track detection system of the CPⅢ track control network operates in the mode of first setting up the total station, and then relying on the total station to automatically track the prism on the track detection trolley, and to determine the line coordinates by static or dynamic measurement. Its main disadvantage is that the accuracy of CPⅢ track control network points is not high enough, and the algorithm for calculating the coordinates of the track detected point and the center line is relatively cumbersome. Contents of the invention [0003] Aiming at the deficiencies in the prior art, the present invention provides a device and method f...

AI Technical Summary

Problems solved by technology

[0002] The current three-dimensional track detection system of the CPⅢ track control network operates in the mode of first setting up the total station, and then relying on the total station to automatically track the prism on the track detection trolley, and to determine the line coordinates by static or dynamic measurement. Its main disadvantage is that the accuracy of CPⅢ track control network points is not high enough, and the algorithm for calculating the coordinates of the track detected point and the center line is relatively cumbersome

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